Latest Contributions by SteveLynch

‎12-23-2013

I agree that you have too few points. You don't need to put points at the corners. In the environment you need to specify an output extent, the default is the extent of the input points. -Steve

‎12-17-2013

Justin Snap Raster would fix your problem. If you set the output extent it means that there is a good change that the output raster's origin will shift. You can test this, set the output extent = polygon FC and run SA's Plus tool and add 0 (zero) to your raster and see where the output raster draws. Now repeat this and use Snap Raster. Therefore, good idea, set the Snap Raster = input raster when changing the extent. -Steve

‎12-17-2013

Veronika You have some typo's in your code. See updated code below. initialLyr = "galyr" optimizedLyr = "galyr2" optimizedXML = r"c:\temp\outModel.xml" arcpy.IDW_ga("DrawPointsTest","Value1",initialLyr) arcpy.GASetModelParameter_ga(initialLyr, "/model/value[@name='Power']/@auto", "true", optimizedXML) arcpy.GACreateGeostatisticalLayer_ga(optimizedXML ,"DrawPointsTest Value1",optimizedLyr) optimizedPower = arcpy.GAGetModelParameter_ga(optimizedLyr,"/model[@name = 'IDW']/value[@name = 'Power']") print optimizedPower You only have to run IDW once to create a template geostatistical layer. Any parameter, like neighborhood or power, can then be changed via GASetModelParameter. When this model source is passed into GACreateGeostisticalLayer a new geostatistical layer is created. Geostatistical Analyst does not have any public API's. However, all geoprocessing tools can be called in C#, see http://help.arcgis.com/en/sdk/10.0/arcobjects_net/conceptualhelp/index.html#/d/0001000003rr000000.htm -Steve

‎12-17-2013

However, very sadly, we users don�??t see the tool in 10.x so far (see the attachment)[/INDENT] Larry In your graphic, what happens if you expand the tools in Raster. I.e DataManagement->ProjectionsandTransformations->Raster->ProjectRaster Steve

‎12-16-2013

I used Google and found the following; http://forums.arcgis.com/threads/51879-Can-optimal-power-be-calculated-by-using-the-GSA-IDW-in-Model-Builder http://forums.arcgis.com/threads/75305-Scripting-IDW-optimize-power-parameter

‎12-10-2013

do steps 15-21 in Exercise 1 of the Geostatistical Analyst tutorial. or you can convert the geostatistical layer to a polygon feature class. Right click on the layer and choose Data.>Export to contour and pick filled contours. or run the GALayerToContour geoprocessing tool. -Steve

‎12-05-2013

Vertical line in your case, see below [ATTACH=CONFIG]29632[/ATTACH]

‎12-05-2013

Please share a screenshot or try and see if you can resize the window that should be above the horizontal line above the 4 buttons on the left. See image below. [ATTACH=CONFIG]29627[/ATTACH]

‎11-27-2013

use the IsNull tool, the output raster is integer with 1=where there are NoData pixels and 0 elsewhere. Open the table and look at the counts

‎11-25-2013

- What version of ArcGIS are you using and have you applied the latest Service Pack for that version? - what happens if you persist the join, i.e. use CopyFeatures? - can you share the data (email it to [email protected])? -Steve

‎11-25-2013

Use Cell Statistics only if the NoData cells have been changed to 0, since it will propagate NoData values from any input raster into the output raster. See "How Cell Statistics works". Kind regards, Xander Xander Create a ConstantRaster (filled with 1's), then use the Shift tool (say shiftx, shifty=55) and create another raster. Use CellStatistics (Overlay statistic=Sum), Extent=Union and the rest=default. You'll notice that your output has 1's and 2's and, Nodata in areas where neither rasters have values. Now if you uncheck Ignore Nodata on the Cellstats tool and do the above you'll only get 2's -Steve

‎11-22-2013

use the Cellstatistics tool and set the extent to Union -Steve

‎11-21-2013

None of the current interpolation tools do "round the world" interpolation. I.e. the search neighborhood ends at 0 and at 360. Think of it as a rectangle 0 to 360 and -90 to +90. The points on the far left, circa 0, are not considered neighbors of the points on the far right, circa 360. Also, the Arctic Circle is a rectangle! Also, a cell size of 0.04 at the equator and a the poles, what does it represent? If you make the cell size too small then you might encounter the SplineWithBarriers size limit (16500; 16500 columns and rows). However, a cellsize of 0.04 degrees only yields a raster with 9028 columns and 4358 rows. To do this type of interpolation you'll need to interpolate in blocks and Mosaic the output. Also best to work in projected coordinates and not in Geographic coordinates. -Steve

‎11-14-2013

EBK with barriers does not exist.

‎11-08-2013

The "tutorial" page at http://resources.arcgis.com/en/help/main/10.2/index.html#//0031000000nz000000 suggests that you go to https://customers.esri.com/index.cfm?event=login.show to download the data. Have you tried that? Steve

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My Ideas

Latest Contributions by SteveLynch

Re: Extending spline beyond points

Re: Raster to Point Output: Points On Edge of Cells, Not Centered

Re: "Click to Optimize" in IDW with c#

Re: Converting DEM cell size from degrees to meters

Re: "Click to Optimize" in IDW with c#

Re: How do I clip a .lyr file?

Re: where is the view settings panel in the geostatistical wizard for semivariogram?

Re: where is the view settings panel in the geostatistical wizard for semivariogram?

Re: Calculate percentage of NODATA pixels in a scene

Re: GIS crashes when I try to use Kriging/CoKriging

Re: Raster Sum

Re: Raster Sum

Re: Projection error in spline with barriers using 0-360deg data

Re: Tutorial example on help menu for Empirical bayesian Kriging doesn't work.

Re: Tutorial example on help menu for Empirical bayesian Kriging doesn't work.

How to add criteria to a suitability model

Re: re-opening Suitability Model on other computer...

When to run suitability at full resolution?

Understanding the values making up a Suitability M...

Re: Suitability Modeler "Generate Report" is greye...

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